The Sun: New Active Region Expands | NASA SDO

Over the course of just one day a tiny active region grew to became almost as large as its many-days-old neighbor (Aug. 23-24, 2018). Active regions, which are areas of intense magnetism, appear brighter in wavelengths of extreme ultraviolet light and are often the source of solar storms.

Credit: Solar Dynamics Observatory, NASA
Image Date: August 24, 2018
Release Date: September 4, 2018

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